August weather forecast
Sumner, FL

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Weather in August

The last month of the summer, August, is also a hot month in Sumner, Florida, with temperature in the range of an average high of 90.3°F (32.4°C) and an average low of 76.5°F (24.7°C).

Temperature

Sumner's warmest month, August, registers temperatures that range from a high of 90.3°F (32.4°C) to a low of 76.5°F (24.7°C).

Heat index

In August, the average heat index is estimated at an extremely hot 111.2°F (44°C). Beware: Heat exhaustion along with heat cramps are on the cards. Heatstroke could result from sustained physical activity.
The metrics for the heat index are tailored for both shady environments and light winds. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', provides an understanding of perceived warmth by combining temperature and relative humidity. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

In Sumner, the average relative humidity in August is 76%.

Rainfall

The month with the most rainfall is August, when the rain falls for 22.3 days and typically aggregates up to 3.58" (91mm) of precipitation.

Snowfall

January through November are months without snowfall.

Daylight

The average length of the day in August is 13h and 10min.
On the first day of the month, sunrise is at 6:52 am and sunset at 8:23 pm. On the last day of August, sunrise is at 7:09 am and sunset at 7:54 pm EDT.

Sunshine

The average sunshine in August is 9.6h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In August, the maximum UV index of 7 suggests these recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the hottest?

August is the warmest month, with an average high-temperature of 90.3°F (32.4°C) and an average low-temperature of 76.5°F (24.7°C).

How hot is it in August?

An average high-temperature, in August, in Sumner, is 90.3°F (32.4°C) and the average low-temperature is 76.5°F (24.7°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 111.2°F (44°C).

What is the average humidity in August?

In August, the average relative humidity is 76%.

What is the wettest month?

The month with the most rainfall is August, when the rain falls for 22.3 days and typically aggregates up to 3.58" (91mm) of precipitation.

How many days does it rain in August?

In August, the rain falls for 22.3 days. Throughout August, 3.58" (91mm) of precipitation is accumulated.

When it does not snow?

In Sumner, snow does not fall in January through November.

What is the average length of the day in August?

In August, the average day length is 13h and 10min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:52 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 7:54 pm EDT.

How long on average sun shines in August?

In August, the average sunshine duration is 9.6h.

What are the months with the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 7.

How high is the UV index in August?

In August, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Sumner, FL

Average temperature in August - Sumner, FL
  • Average high temperature in August: 90.3°F

The warmest month (with the highest average high temperature) is August (90.3°F).
The month with the lowest average high temperature is January (64°F).

  • Average low temperature in August: 76.5°F

The month with the highest average low temperature is August (76.5°F).
The coldest month (with the lowest average low temperature) is January (47.7°F).

Average pressure in August
Sumner, FL

Average pressure in August - Sumner, FL
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).

Average wind speed in August
Sumner, FL

Average wind speed in August - Sumner, FL
  • Average wind speed in August: 5.2mph

The windiest months (with the highest average wind speed) are January, February and March (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

Average humidity in August
Sumner, FL

Average humidity in August - Sumner, FL
  • Average humidity in August: 76%

The month with the highest relative humidity is September (77%).
The month with the lowest relative humidity is January (71%).

Average rainfall in August
Sumner, FL

Average rainfall in August - Sumner, FL
  • Average rainfall in August: 3.58"

The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is November (0.83").

Average rainfall days in August
Sumner, FL

Average rainfall days in August - Sumner, FL
  • Average rainfall days in August: 22.3 days

The month with the highest number of rainy days is July (22.8 days).
The month with the least rainy days is November (6.6 days).

Average snowfall days in August
Sumner, FL

Average snowfall days in August - Sumner, FL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

Average daylight in August /
Average sunshine in August
Sumner, FL

Average daylight in August / Average sunshine in August - Sumner, FL
  • Average daylight in August: 13h and 1min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in August: 9h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

Average sunshine days in August
Sumner, FL

Average sunshine days in August - Sumner, FL
  • Average sunshine days in August: 5.9 days

The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is July (5.8 days).

Average UV index in August
Sumner, FL

Average UV index in August - Sumner, FL
  • Average UV index in August: 7

The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 4).

Average cloud cover in August
Sumner, FL

Average cloud cover in August - Sumner, FL
  • Average cloud cover in August: 30

The months with the most cloud cover are February and December (Cloud cover 36).
The month with the least cloud cover is May (Cloud cover 25).

Average visibility in August
Sumner, FL

Average visibility in August - Sumner, FL
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Sumner, Florida, USA

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